
Lycoming Creek serves as the primary corridor for the Pennsylvania RR as it cuts through the high plateaus and deep hollows north of Williamsport. This 1921 survey illustrates a rural economy transitioning from timber to localized agriculture, evidenced by the dense network of small schoolhouses and family-named ridges. Notable industrial vestiges like Nail Factory Mtn and Falls Factory School near Hepburnville hint at the manufacturing history that once dotted these creek valleys.
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1921 · Williamsport
USGS Topo · 1:48,000
1921 · Trout Run
USGS Topo · 1:62,500
1921 · Lock Haven
USGS Topo · 1:62,500
1923 · Lock Haven
USGS Topo · 1:62,500
1923 · Trout Run
USGS Topo · 1:62,500
1923 · Williamsport
USGS Topo · 1:62,500
1924 · Milton
USGS Topo · 1:62,500
1925 · Blossburg
USGS Topo · 1:62,500
1927 · Blossburg
USGS Topo · 1:62,500
1930 · Warrensville
USGS Topo · 1:62,500